J.M. Owor, Istituti di Vita Consacrata Religiosa di fronte alle Pie volonta’ e alle Pie Fondazioni, Pontificia Universita’ Lateranense, Roma, 2008.
J.M. Owor, “Participation of the Laity in the Teaching Function of the Church,” in African Christian Religious Studies, vol. 26, no. 3 (2010), pp. 48-72.
J.M. Owor, “Religious life and Mass media,” in African Journal of Canon Law Studies, vol. 1, no. 1 (2014), pp. 51-73.
J.M. Owor, “Lay Participation in the Munera Sanctificandi et Docendi Christi,” in African Journal of Canon Law Studies, vol. 1, no. 2 (2014), pp. 46-85.
J.M. Owor, “Canonical Discipline on Mixed and Disparate Marriages and the challenges in their practice,” in Annuarium Iuris Canonici, 2 (2015), pp. 52-74. An online Journal of the Faculty of Canon Law of Cardinal St. Wyszyński, Warszawa/Poland. Available: www.annuarium.uksw.edu.pl
J.M. Owor, “Canon Law in Service of Authentic Vocational Choice,” in J.M. Owor (ed.), Care for the Youth through Canonical guidance and Protection, Paulines Publications Africa, Nairobi, 2018.
J.M. Owor, “Disregard for the rule of law and ethics,” in OBIORA et al., (eds.), Mainstreaming ethics in higher education. Research ethics in administration, finance, education, environment and law, Vol. 1, Globethics.net Education Ethics, Geneva, 2019, pp. 613-628.
J.M. Owor, In loving we are reborn for the life of the family, Paulines Publications Africa, Nairobi, 2019.